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https://issues.apache.org/jira/browse/KAFKA-5047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Ursul updated KAFKA-5047:
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Priority: Trivial (was: Major)
> NullPointerException while using GlobalKTable in KafkaStreams
> -------------------------------------------------------------
>
> Key: KAFKA-5047
> URL: https://issues.apache.org/jira/browse/KAFKA-5047
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.10.2.0
> Reporter: Ivan Ursul
> Priority: Trivial
>
> Main.java : https://gist.github.com/ivanursul/dcd4bb382c05843606a96417561b4b31
> pom.xml : https://gist.github.com/ivanursul/25baebc584e57c1fa200335f2cd21b43
> Logs: https://gist.github.com/ivanursul/4d023c783a80ea745f6ebade88c6b810
> WordsWithCountsTopic messages:
> https://gist.github.com/ivanursul/42b2312055ab200bd4bba1d4cab5791a
> I use kafka_2.10-0.10.2.0 downloaded from official website.
> Am I doing something wrong here ? I tried to follow this example:
> https://github.com/confluentinc/examples/blob/3.2.x/kafka-streams/src/main/java/io/confluent/examples/streams/GlobalKTablesExample.java
> Most probably, the problem is because there are missing keys for some
> messages:
> https://gist.github.com/ivanursul/87949fd35b67c6a7b22ceef7af72ea1c
> https://gist.github.com/ivanursul/366689aed57ee9d861846dcf4ccdae7c
> So, to finalize, the problem is that I mistakenly choose a wrong topic for a
> raw text lines and put them to another topic, which should have keys and
> which was connected to GlobalKTable. Since there were nulls, GlobalKTable
> failed to initialize
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